TABLE 1.
Metabolite accumulation in the leaves of Cyclocarya paliurus at low and high altitudes.
| Order | Group | Number of compounds | HA > LA | LA > HA |
| 1 | Flavonoids (including anthocyanins) | 66 | 47 | 19 |
| 2 | Lipids | 19 | 16 | 3 |
| 3 | Amino acids and its derivatives | 19 | 8 | 11 |
| 4 | Organic acids | 9 | 5 | 4 |
| 5 | Nucleotide derivatives | 8 | 4 | 4 |
| 6 | Hydroxycinnamoyl derivatives | 6 | 3 | 3 |
| 7 | Phenolamides | 4 | 4 | 0 |
| 8 | Coumarins | 3 | 2 | 1 |
| 9 | Tryptamine derivatives | 3 | 3 | 0 |
| 10 | Indole derivatives | 2 | 2 | 0 |
| 11 | Alcohols and polyols | 2 | 2 | 0 |
| 12 | Vitamins | 1 | 1 | 0 |
| 13 | Alkaloids | 1 | 1 | 0 |
| 14 | Cholines | 1 | 1 | 0 |
| 15 | Quinate and its derivatives | 1 | 0 | 1 |
| 16 | Others | 1 | 1 | 0 |
| Total | 146 | 100 | 46 |
HA indicates high altitude, while LA indicates low altitude.